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Electronics Worksheet: Resistor Colour Code

Electronics lesson 15: Resistor colour code · Set 419 · 40 questions
TalentJR

Remember (Digit, digit, zeros): black 0 · brown 1 · red 2 · orange 3 · yellow 4 · green 5 · blue 6 · violet 7 · grey 8 · white 9. Band 1 and band 2 = two digits; band 3 = number of zeros to add. Examples: brown-black-red = 1000 Ω; yellow-violet-brown = 470 Ω; red-red-red = 2200 Ω = 2.2 kΩ.

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  1. 1.🌈 A resistor has the colour bands brown, orange, red. What is its value in kilo-ohms (kΩ)? =
  2. 2.🌈 In the resistor colour code, which number does grey stand for?
  3. 3.🌈 In the resistor colour code, which number does red stand for?
  4. 4.🌈 Which band is read first on a resistor? (a) the one nearest an end (b) the widest gap (c) the gold band (d) any band
  5. 5.🌈 A resistor has the colour bands orange, violet, orange. What is its value in kilo-ohms (kΩ)? =
  6. 6.🌈 A resistor has the colour bands white, blue, brown. What is its value (in ohms)?
  7. 7.🌈 A resistor has the colour bands red, brown, black. What is its value (in ohms)?
  8. 8.🌈 A resistor has the colour bands orange, grey, brown. What is its value (in ohms)?
  9. 9.🌈 A resistor has the colour bands red, green, red. What is its value in kilo-ohms (kΩ)? =
  10. 10.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 34 Ω resistor? (a) orange-yellow-brown (b) yellow-yellow-black (c) orange-yellow-black (d) yellow-orange-black
  11. 11.🌈 A resistor has the colour bands grey, yellow, orange. What is its value in kilo-ohms (kΩ)? =
  12. 12.🌈 A resistor has the colour bands violet, green, orange. What is its value in kilo-ohms (kΩ)? =
  13. 13.🌈 A resistor has the colour bands grey, red, orange. What is its value in kilo-ohms (kΩ)? =
  14. 14.🌈 In the resistor colour code, which number does green stand for?
  15. 15.🌈 In the resistor colour code, which number does blue stand for?
  16. 16.🌈 A resistor has the colour bands white, red, black. What is its value (in ohms)?
  17. 17.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 37000 Ω resistor? (a) orange-violet-red (b) orange-violet-yellow (c) violet-orange-orange (d) orange-violet-orange
  18. 18.🌈 A resistor has the colour bands violet, yellow, orange. What is its value (in ohms)?
  19. 19.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 32000 Ω resistor? (a) orange-red-yellow (b) orange-red-orange (c) orange-red-red (d) red-orange-orange
  20. 20.🌈 A resistor has the colour bands blue, violet, black. What is its value (in ohms)?
  21. 21.🌈 A resistor has the colour bands yellow, violet, red. What is its value in kilo-ohms (kΩ)? =
  22. 22.🌈 A resistor has the colour bands blue, violet, orange. What is its value in kilo-ohms (kΩ)? =
  23. 23.🌈 A resistor has the colour bands green, orange, yellow. What is its value in kilo-ohms (kΩ)? =
  24. 24.🌈 A resistor has the colour bands violet, green, orange. What is its value (in ohms)?
  25. 25.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark an 84 Ω resistor? (a) white-yellow-black (b) grey-yellow-black (c) yellow-grey-black (d) grey-yellow-brown
  26. 26.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 900 Ω resistor? (a) brown-white-brown (b) white-black-brown (c) white-black-black (d) white-black-red
  27. 27.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 9100 Ω resistor? (a) white-brown-red (b) white-brown-brown (c) brown-white-red (d) white-brown-orange
  28. 28.🌈 In the resistor colour code, which number does brown stand for?
  29. 29.🌈 A resistor has the colour bands orange, white, red. What is its value in kilo-ohms (kΩ)? =
  30. 30.🌈 A resistor has the colour bands yellow, red, orange. What is its value in kilo-ohms (kΩ)? =
  31. 31.🌈 A resistor has the colour bands orange, green, yellow. What is its value in kilo-ohms (kΩ)? =
  32. 32.🌈 A resistor has the colour bands white, grey, orange. What is its value (in ohms)?
  33. 33.🌈 A resistor has the colour bands red, blue, red. What is its value in kilo-ohms (kΩ)? =
  34. 34.🌈 A resistor has the colour bands brown, white, yellow. What is its value in kilo-ohms (kΩ)? =
  35. 35.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 220 Ω resistor? (a) red-red-black (b) red-red-red (c) red-red-brown (d) red-orange-brown
  36. 36.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 29000 Ω resistor? (a) red-white-orange (b) red-white-yellow (c) white-red-orange (d) red-white-red
  37. 37.🌈 A resistor has the colour bands grey, violet, orange. What is its value (in ohms)?
  38. 38.🌈 A resistor has the colour bands white, red, brown. What is its value (in ohms)?
  39. 39.🌈 Which colour bands (1st digit, 2nd digit, multiplier) mark a 25 Ω resistor? (a) red-green-brown (b) green-red-black (c) orange-green-black (d) red-green-black
  40. 40.🌈 A resistor has the colour bands grey, violet, black. What is its value (in ohms)?

Answer key

  1. 1.3
  2. 8
  3. 2
  4. the one nearest an end
  5. 37
  6. 960
  7. 21
  8. 380
  9. 2.5
  10. orange-yellow-black
  11. 84
  12. 75
  13. 82
  14. 5
  15. 6
  16. 92
  17. orange-violet-orange
  18. 74000
  19. orange-red-orange
  20. 67
  21. 4.7
  22. 67
  23. 530
  24. 75000
  25. grey-yellow-black
  26. white-black-brown
  27. white-brown-red
  28. 1
  29. 3.9
  30. 42
  31. 350
  32. 98000
  33. 2.6
  34. 190
  35. red-red-brown
  36. red-white-orange
  37. 87000
  38. 920
  39. red-green-black
  40. 87

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